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CN101355611B - Voice conference system and portable electronic device using the same - Google Patents

Voice conference system and portable electronic device using the same Download PDF

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Publication number
CN101355611B
CN101355611B CN2007100752959A CN200710075295A CN101355611B CN 101355611 B CN101355611 B CN 101355611B CN 2007100752959 A CN2007100752959 A CN 2007100752959A CN 200710075295 A CN200710075295 A CN 200710075295A CN 101355611 B CN101355611 B CN 101355611B
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audio
module
software
voice
radio receiving
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CN101355611A (en
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冯旭宏
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Hengqin International Intellectual Property Exchange Co ltd
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Shenzhen Futaihong Precision Industry Co Ltd
Chi Mei Communication Systems Inc
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Priority to CN2007100752959A priority Critical patent/CN101355611B/en
Priority to US11/967,101 priority patent/US20090028071A1/en
Publication of CN101355611A publication Critical patent/CN101355611A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/253—Telephone sets using digital voice transmission
    • H04M1/2535—Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/62—Details of telephonic subscriber devices user interface aspects of conference calls

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)

Abstract

本发明提供一种语音会议系统及应用该语音会议系统的便携式电子装置。该语音会议系统包括电性连接的无线收发模块、语音输入/输出模块、数字信号处理模块、通信模块及应用程序处理模块。该无线收发模块用于接收和发送信号。从所述语音输入/输出模块输入的语音信息经由数字信号处理模块、应用程序处理模块及无线收发模块发送出去，或经由数字信号处理模块、通信模块及无线收发模块发送出去；从无线收发模块进入的语音信息经由通信模块及数字信号处理模块发送至语音输入/输出模块，或经由应用程序处理模块及数字信号处理模块发送至语音输入/输出模块。该语音会议系统及应用该语音会议系统的便携式电子装置可进行VoIP与一般通话间的语音会议。

Figure 200710075295

The invention provides a voice conference system and a portable electronic device using the voice conference system. The audio conferencing system includes an electrically connected wireless transceiver module, a voice input/output module, a digital signal processing module, a communication module and an application program processing module. The wireless transceiver module is used for receiving and sending signals. The voice information input from the voice input/output module is sent out through the digital signal processing module, the application program processing module and the wireless transceiver module, or sent out through the digital signal processing module, the communication module and the wireless transceiver module; The voice information is sent to the voice input/output module through the communication module and the digital signal processing module, or sent to the voice input/output module through the application program processing module and the digital signal processing module. The voice conferencing system and the portable electronic device using the voice conferencing system can conduct voice conferences between VoIP and general calls.

Figure 200710075295

Description

Speech conference system and use the portable electron device of this speech conference system
Technical field
The present invention relates to a kind of communication system, particularly relate to a kind of speech conference system and use the portable electron device of this speech conference system.
Background technology
Along with the development of information technology, mobile communication and network service become consumers in general's main flow channel of communication gradually, and popularizing of mobile phone and VoIP (Voice over Internet Protocol) network service becomes a reality.The mobile phone of developing on traditional platform is only supported mobile communications network mostly, and mobile phone itself also only is a communication terminal of this mobile communications network, and the service item that mobile phone can use depends on telecom operators but not the user fully.
Under the market demand that improves day by day, produced intelligent mobile phone.Usually, intelligent mobile phone (for example can be supported more than one radio communication interfaces of introducing from the computer network environment, Wifi, WiMAX etc.), and most TCP/IP (Transmission Control Protocol/Internet Protocol) agreements of supporting, on intelligent mobile phone platform, allow to use third party application simultaneously, therefore imported at the up VoIP that year is arranged of computer network.Yet, because the service restriction of telecom operators and the influence of associated the Internet protocol, VoIP exists the problem that is difficult for communicating with communication network on the mobile phone platform, even if the consumer has used intelligent mobile phone, still can't enjoy the cheap expense of VoIP to one's heart's content, also can bear bigger financial burden simultaneously because of the communication cost of costliness.
Summary of the invention
At the problems referred to above, be necessary to provide a kind of VoIP-telecommunication voice conference system that is not subjected to the procotol constraint.
In addition, be necessary to provide a kind of application not to be subjected to the portable electron device of the VoIP-telecommunication voice conference system of procotol constraint.
A kind of speech conference system that is applied to portable electron device, it comprises radio receiving transmitting module, phonetic entry/output module, digital signal processing module, communication module and the application program processing module of electric connection.This digital signal processing module comprises a self adaptation multi code Rate of Chinese character coder and at least two audio mixers that electrically connect with this self adaptation multi code Rate of Chinese character coder respectively, and this radio receiving transmitting module is used for receiving and sending signal.Send via audio mixer, application program processing module and radio receiving transmitting module from the voice messaging of described phonetic entry/output module input, or send via audio mixer, self adaptation multi code Rate of Chinese character coder, communication module and radio receiving transmitting module; The voice messaging that enters from radio receiving transmitting module is sent to phonetic entry/output module via communication module, self adaptation multi code Rate of Chinese character coder and audio mixer, or being sent to phonetic entry/output module via application program processing module and audio mixer, any two kinds of voice signals carry out Frequency mixing processing in the voice signal that audio mixer transmits in order to voice signal that phonetic entry/output module is transmitted, voice signal that self adaptation multi code Rate of Chinese character coder transmits and application program processing module.
A kind of portable electron device, it has call function, and this portable electron device comprises a speech conference system.This speech conference system comprises radio receiving transmitting module, phonetic entry/output module, digital signal processing module, communication module and the application program processing module of electric connection, this digital signal processing module comprises a self adaptation multi code Rate of Chinese character coder and at least two audio mixers that electrically connect with this self adaptation multi code Rate of Chinese character coder respectively, wherein, this radio receiving transmitting module is used for receiving and sending signal.Send via audio mixer, application program processing module and radio receiving transmitting module from the voice messaging of described phonetic entry/output module input, or send via audio mixer, self adaptation multi code Rate of Chinese character coder, communication module and radio receiving transmitting module; The voice messaging that enters from radio receiving transmitting module is sent to phonetic entry/output module via communication module, self adaptation multi code Rate of Chinese character coder and audio mixer, or being sent to voice output/input module via application program processing module and audio mixer, any two kinds of voice signals carry out Frequency mixing processing in the voice signal that audio mixer transmits in order to voice signal that phonetic entry/output module is transmitted, voice signal that self adaptation multi code Rate of Chinese character coder transmits and application program processing module.
Compared to prior art, described speech conference system and the portable electron device of using this speech conference system can independently carry out the voice conferencing of VoIP and general call office under the unsupported situation of backbone network, by portable electron device being orientated as two kinds of routers in the network architecture, utilize decoding, audio mixing and the code capacity of portable electron device itself voice conferencing of having connected.
Description of drawings
Fig. 1 is the system architecture schematic diagram of the speech conference system of better embodiment of the present invention.
Embodiment
The speech conference system of better embodiment of the present invention can be used for the portable electron device that mobile phone, PDA (Personal Digital Assistant, personal digital assistant) etc. have call function.
See also shown in Figure 1, the described speech conference system (figure is mark not) that is applied to this portable electron device 100 comprises radio receiving transmitting module 11a, the 11b of mutual electric connection, phonetic entry/output module 12, an application program processing module 14, a digital signal processing module 16 and a communication module 18.
This radio receiving transmitting module 11a, 11b are used for receiving and sending signal, and it can be respectively an entity antenna.This phonetic entry/output module 12 comprises a plurality of audio hardware, and these a plurality of audio hardware are the loud speaker 126 that receiver 124 and that a microphone 122, that is used for phonetic entry is used for voice output is used to enlarge the voice output volume.
This application program processing module 14 comprises a system service software 142, a VoIP software 144, an audio path switch unit 146 and an audio driver 148.The data that the operating system by portable electron device 100 of being used for this system service software 142 when VoIP software 144 is carried out transmits on the Internet is carried out the decipher reorganization, and in the present embodiment, it is the ICP/IP protocol layer of application processing module 14.The software of described VoIP software 144 for carrying out the VoIP communication, common have Skype, MSN (MicrosoftNetwork messenger), a Tencent QQ etc., is used for voice signal is carried out encoding and decoding to realize instant messaging.Described VoIP software 144 has a local audio application programming interface 1442, is used to provide system calling, as broadcast and recording etc.
Described audio path switch unit 146 is the special software in this portable electron device 100, and it is used to receive from the control signal of communication module 18 with VoIP software 144, detects the talking state of each audio hardware.Described audio driver 148 is used for switching and driving audio hardware according to the judged result of audio path switch unit 146, and this audio driver 148 also can be made simple Audio Signal Processing, as eliminating echo.
Described digital signal processing module 16 comprises a self adaptation multi code Rate of Chinese character coder 162 and a plurality of audio mixer 164a, 164b, 164c, the 164d that electrically connect with this self adaptation multi code Rate of Chinese character coder 162 respectively.Wherein, this self adaptation multi code Rate of Chinese character coder 162 is used for voice signal is carried out encoding and decoding to reduce amount of information; These a plurality of audio mixer 164a, 164b, 164c, 164d are used for realizing the sound mixing function of digital signal processing module 16.
Described communication module 18 comprises a communication protocol software 182 and a bottom software 184.This communication protocol software 182 is the communications protocol layers in the portable electron device 100, be responsible for communication network 22 in the base station link up, and whether the control communication line is connected.It is control signal and audio signal that bottom software 184 is used for Signal Separation.
In the communication process, suppose that the user (hereinafter to be referred as " user ") of this portable electron device 100 and user's certain person (hereinafter to be referred as " first ") of the Internet 20 set up VoIP conversation, set up GSM conversation with user's second (hereinafter to be referred as " second ") of communication network 22 this moment again, and this two is taken on the telephone and merge into videoconference.So, the voice messaging that the user sent is sent to first and second respectively, and the two voice messaging that sends of first, second is sent to the user through behind the audio mixing, simultaneously, the voice messaging of user and first can be sent to second through behind the audio mixing, and the voice messaging of user and second is sent to first through behind the audio mixing.
The signal flow of above-mentioned communication process can be described below: the voice messaging that the user sends is sent to first and second respectively.The voice messaging that the user sent is sent to audio driver 148 from microphone 122 via audio mixer 164b, also can directly be sent to audio driver 148 from microphone 122, audio driver 148 is according to the communications status of VoIP software 144, connect VoIP software and transfers voice information, VoIP software 144 carries out this voice messaging the compressed voice coding and is sent to system service software 142, and system service software 142 also sees through radio receiving transmitting module 11a with the information package that is received and is sent to the Internet 20 and then is sent to first.
Simultaneously, the voice messaging that the user sent is sent to self adaptation multi code Rate of Chinese character coder 162 from microphone 122 via audio mixer 164a, also can directly be sent to self adaptation multi code Rate of Chinese character coder 162 from microphone 122, after 162 pairs of these voice messagings of self adaptation multi code Rate of Chinese character coder are encoded, be sent to the bottom software 184 of communication module 18, the control information that bottom software 184 sends according to communications protocol layers 182, the voice messaging that receives is handled, be separated into control signal and audio signal, be sent to the base station of second place network at last by radio receiving transmitting module 11b, and then user's sound is sent to second.
The voice messaging that first and second are sent also is sent to the user simultaneously.At this moment, the voice messaging that first is sent carries out packing data via radio receiving transmitting module 11a and is sent to the system service software 142 of application processing module 14, this system service software 142 carries out the voice messaging that receives to be sent to VoIP software 142 behind the packed data coding, 142 pairs of information that receive of this VoIP software speech coding that decompresses, and send a VoIP talking state via local audio application programming interface 1442 and notify to audio path switch unit 146.The talking state of these audio path switch unit 146 detecting audio hardware receivers 124 and loud speaker 126, and judge whether to continue transmission information.Audio driver 148 judges whether to drive this audio hardware according to the talking state of audio path switch unit 146 detectings and received information.If receiver 124 and loud speaker 126 are carrying out another conversation, then this voice messaging can't send; If receiver 124 and 126 free time of loud speaker, then audio driver 148 is sent to audio mixer 164c or audio mixer 164d with the voice messaging of first.
The voice messaging that second is sent is sent to bottom software 184 via radio receiving transmitting module 11b, bottom software 184 is control signal and audio signal with the Signal Separation that receives, and audio signal is sent to self adaptation multi code Rate of Chinese character coder 162, after 162 pairs of these voice messagings of self adaptation multi code Rate of Chinese character coder are decoded, send it to audio mixer 164c or audio mixer 164d.
The voice messaging of first and the voice messaging of second are sent to receiver 124 after via audio mixer 164c audio mixing, and perhaps via being sent to loud speaker 126 behind the audio mixer 164d audio mixing, thereby the user can hear the sound of first and second respectively.
Be similar to said process, first and user's sound is sent to second respectively.The voice messaging that first is sent carries out packing data via radio receiving transmitting module 11a and is sent to the system service software 142 of application processing module 14, this system service software 142 carries out the voice messaging that receives to be sent to VoIP software 142 behind the packed data coding, 142 pairs of information that receive of this VoIP software speech coding that decompresses, and be sent to audio driver 148 via local audio application programming interface 1442.Audio driver 148 is delivered to audio mixer 164a with the voice messaging of the first that receives.The voice messaging that the user sent is sent to audio mixer 164a from microphone 122.The voice messaging of first and user's voice messaging are sent to self adaptation multi code Rate of Chinese character coder 162 by behind the audio mixer 164a audio mixing.After the voice messaging of 162 pairs of these receptions of self adaptation multi code Rate of Chinese character coder is encoded, be sent to the bottom software 184 of communication module 18, bottom software 184 is handled the voice messaging coding that receives, be separated into control signal and audio signal, be sent to the base station of second place network at last by radio receiving transmitting module 11b, and then be sent to second, thereby second can be heard the sound of user and first simultaneously.
Second and user's sound also is sent to first respectively.The voice messaging that second is sent is sent to bottom software 184 via radio receiving transmitting module 11b, bottom software 184 is control signal and audio signal with the Signal Separation that receives, and audio signal is sent to self adaptation multi code Rate of Chinese character coder 162, after 162 pairs of these voice messagings of self adaptation multi code Rate of Chinese character coder are decoded, send it to audio mixer 164b.The voice messaging that the user sent is sent to audio mixer 164b from microphone 122.The voice messaging of first and user's voice messaging are sent to audio driver 148 by behind the audio mixer 164b audio mixing.Audio driver 148 judges whether to transmit the information of reception according to the communications status of VoIP software 144.If VoIP software is carrying out another conversation, then audio driver 148 is replied busy tone; If the VoIP software free time, then audio driver 148 is connected VoIP software and transfers voice information, VoIP software 144 carries out this voice messaging the compressed voice coding and is sent to system service software 142, system service software 142 also sees through radio receiving transmitting module 11a with the Information Compression that is received and is sent to the Internet 20 and then is sent to first, thereby second can be heard the sound of user and first simultaneously.By said process, the arbitrary sound that can hear other two people per capita among the conversation three parts, thus reach the purpose of videoconference.
In sum, the signal flow of said process can be briefly described as follows.User's first of the user of portable electron device 100 and the Internet 20 is set up VoIP conversation, sets up GSM conversation with user's second of communication network 22, and this two is taken on the telephone and merge into videoconference.At this moment, the voice messaging that the user sends is sent to bottom software 184 in VoIP software 144 and the communication module 18 respectively through microphone 122, send through radio receiving transmitting module 11a, 11b, thereby first, second two people all can hear user's sound.When first, second is spoken, then be via the Internet 20 and communication network 22 the two voice messaging that sends to be sent to portable electron device 100 respectively, audio mixing is after sent by microphone 122, and the user then can hear the sound of first, second.Simultaneously, portable electron device 100 can be sent the sound of first and user's sound audio mixing again by bottom software 184, be sent to communication network 22 via radio receiving transmitting module 11b, thereby second can be heard the sound of user and first.Portable electron device 100 is delivered to the Internet 20 by VoIP software 144 again with the sound of second and user's sound audio mixing, so arbitrary people can hear two people's sound in addition, reaches the purpose of videoconference.
In addition, user's first of communication network 22 can directly be conversed with user's second of the Internet 20.The voice messaging that first is sent carries out packing data via radio receiving transmitting module 11a and is sent to the system service software 142 of application processing module 14, this system service software 142 carries out the voice messaging that receives to be sent to VoIP software 144 behind the packed data coding, 144 pairs of information that receive of this VoIP software speech coding that decompresses, and be sent to audio path switch unit 146 via local audio application programming interface 1442.The talking state of these audio path switch unit 146 detecting communication modules 18 as if 18 free time of communication module, then switches to signal communication protocol software 182.Communication protocol software 182 is according to the detecting control communication line of audio path switch unit 146, send a control signal to bottom software 184, and the voice messaging that first is sent is sent to bottom software 184, bottom software 184 is handled the voice messaging coding that receives, be sent to the base station of second place network at last by radio receiving transmitting module 11b, and then be sent to second.
The voice messaging that second is sent is sent to bottom software 184 via radio receiving transmitting module 11b, and bottom software 184 is with the information processing that receives and be sent to communication protocol software 182.Communication protocol software 182 is sent to audio path switch unit 146 with the information that receives.The talking state of these audio path switch unit 146 detecting VoIP softwares 144, audio driver 148 judges whether to transmit the information of reception according to the communications status of VoIP software 144.If VoIP software is carrying out another conversation, then audio driver 148 is replied busy tone; If the VoIP software free time, then audio driver 148 is connected VoIP software and transfers voice information, VoIP software 144 carries out this voice messaging the compressed voice coding and is sent to system service software 142, system service software 142 also sees through radio receiving transmitting module 11a with the Information Compression that is received and is sent to the Internet 20 and then is sent to first, thereby first can be heard the sound of second.
Be appreciated that described radio receiving transmitting module 11a, 11b can only be a radio receiving transmitting module, this radio receiving transmitting module can receive the signal from the Internet 20 and communication network 22, and can send signal to the Internet 20 and communication network 22 respectively.In addition, receiver 124 and loud speaker 126 can either-ors.When only being two square tubes words and when not needing Three-Way Calling, can not use audio mixer 164a, 164b, 164c, 164d.
Described portable electron device 100 and the speech conference system of using thereof can independently carry out the voice conferencing of VoIP and general call office under the unsupported situation of backbone network, by portable electron device 100 being orientated as two kinds of routers in the network architecture, utilize decoding, audio mixing and the code capacities of portable electron device 100 itself voice conferencing of having connected.

Claims (14)

1. speech conference system, it comprises the radio receiving transmitting module of electric connection, phonetic entry/output module, digital signal processing module and communication module, this radio receiving transmitting module is used for receiving and sending signal, it is characterized in that: this digital signal processing module comprises a self adaptation multi code Rate of Chinese character coder and at least two audio mixers that electrically connect with this self adaptation multi code Rate of Chinese character coder respectively, this speech conference system further comprises one and radio receiving transmitting module, phonetic entry/output module, self adaptation multi code Rate of Chinese character coder, the application program processing module that audio mixer and communication module electrically connect respectively, from the voice messaging of phonetic entry/output module input via audio mixer, application program processing module and radio receiving transmitting module send, or via audio mixer, self adaptation multi code Rate of Chinese character coder, communication module and radio receiving transmitting module send; The voice messaging that enters from radio receiving transmitting module is sent to phonetic entry/output module via communication module, self adaptation multi code Rate of Chinese character coder and audio mixer, or being sent to phonetic entry/output module via application program processing module and audio mixer, any two kinds of voice signals carry out Frequency mixing processing in the voice signal that audio mixer transmits in order to voice signal that phonetic entry/output module is transmitted, voice signal that self adaptation multi code Rate of Chinese character coder transmits and application program processing module.
2. speech conference system as claimed in claim 1 is characterized in that: described radio receiving transmitting module is an entity antenna.
3. speech conference system as claimed in claim 1 is characterized in that: described phonetic entry/output module comprises a plurality of audio hardware, and these a plurality of audio hardware comprise that a microphone and that is used for phonetic entry is used for the receiver of voice output.
4. speech conference system as claimed in claim 3 is characterized in that: described audio hardware comprises that further one is used to enlarge the loud speaker of voice output volume.
5. as claim 3 or 4 described speech conference systems, it is characterized in that: described application program processing module comprises a system service software, a VoIP software, an audio path switch unit and an audio driver, wherein said system service software is the ICP/IP protocol layer, the software of described VoIP software for carrying out instant messaging based on the Internet, this VoIP software has a local audio application programming interface; Described audio path switch unit is used to detect talking state; Described audio driver is used for switching and driving audio hardware according to the detecting result of audio path switch unit.
6. speech conference system as claimed in claim 5 is characterized in that: described self adaptation multi code Rate of Chinese character coder is electrically connected between audio mixer and the communication module, is used for voice signal is carried out encoding and decoding to reduce amount of information.
7. speech conference system as claimed in claim 6, it is characterized in that: described communication module comprises a communication protocol software and a bottom software, this communication protocol software is the communications protocol layers in this speech conference system, be responsible for mobile communication system in the base station link up, and according to the transmission of talking state control signal, it is control signal and audio signal that this bottom software is used for Signal Separation.
8. portable electron device, it comprises the radio receiving transmitting module of electric connection, phonetic entry/output module, digital signal processing module and communication module, this radio receiving transmitting module is used for receiving and sending signal, it is characterized in that: this digital signal processing module comprises a self adaptation multi code Rate of Chinese character coder and at least two audio mixers that electrically connect with this self adaptation multi code Rate of Chinese character coder respectively, this portable electron device further comprises one and radio receiving transmitting module, phonetic entry/output module, self adaptation multi code Rate of Chinese character coder, the application program processing module that audio mixer and communication module electrically connect respectively, from the voice messaging of phonetic entry/output module input via audio mixer, application program processing module and radio receiving transmitting module send, or via audio mixer, self adaptation multi code Rate of Chinese character coder, communication module and radio receiving transmitting module send; The voice messaging that enters from radio receiving transmitting module is sent to phonetic entry/output module via communication module, self adaptation multi code Rate of Chinese character coder and audio mixer, or being sent to phonetic entry/output module via application program processing module and audio mixer, any two kinds of voice signals carry out Frequency mixing processing in the voice signal that audio mixer transmits in order to voice signal that phonetic entry/output module is transmitted, voice signal that self adaptation multi code Rate of Chinese character coder transmits and application program processing module.
9. portable electron device as claimed in claim 8 is characterized in that: described radio receiving transmitting module is an entity antenna.
10. portable electron device as claimed in claim 8 is characterized in that: described phonetic entry/output module comprises a plurality of audio hardware, and this audio hardware comprises that a microphone and that is used for phonetic entry is used for the receiver of voice output.
11. portable electron device as claimed in claim 10 is characterized in that: described audio hardware comprises that further one is used to enlarge the loud speaker of voice output volume.
12. as claim 10 or 11 described portable electron devices, it is characterized in that: described application program processing module comprises a system service software, a VoIP software, an audio path switch unit and an audio driver, wherein said system service software is the ICP/IP protocol layer, the software of described VoIP software for carrying out instant messaging based on the Internet, this VoIP software has a local audio application programming interface; Described audio path switch unit is used to detect talking state; Described audio driver is used for switching and driving audio hardware according to the detecting result of audio path switch unit.
13. portable electron device as claimed in claim 12 is characterized in that: described self adaptation multi code Rate of Chinese character coder is electrically connected between audio mixer and the communication module, is used for voice signal is carried out encoding and decoding to reduce amount of information.
14. portable electron device as claimed in claim 13, it is characterized in that: described communication module comprises a communication protocol software and a bottom software, this communication protocol software is the communications protocol layers in this portable electron device, be responsible for mobile communication system in the base station link up, and according to the transmission of talking state control signal, it is control signal and audio signal that this bottom software is used for Signal Separation.
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